Home / 813,410.71-1,122,466.21-450,831.32

Finding the Fourth Proportional to 813,410.71, 1,122,466.21 and 450,831.32

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Solution

The fourth proportional to 813,410.71, 1,122,466.21 and 450,831.32 is: 622,124.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,410.71 : 1,122,466.21 = 450,831.32 : x
  2. Step 2: Convert to fraction form
    813,410.71/1,122,466.21 = 450,831.32/x
  3. Step 3: Cross multiply
    813,410.71x = 1,122,466.21 × 450,831.32
  4. Step 4: Simplify right side
    813,410.71x = 506,042,920,579.54
  5. Step 5: Solve for x
    x = 506,042,920,579.54/813,410.71
  6. Step 6: Final answer
    x = 622,124.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.